Improvement in gang-plows



UNITED STATES PATENT OFFICE.

IMPROVEMENT IN GANG-PLOWS.

Specification forming part of Letters Patent No. 120,384, dated October`31, 1871.

To all whom it may concern:

Be it known that we, JAMES M. HUIE and ELIsHA CARD, of the city andcounty of San Francisco and State of California, have invented anImproved Gan g-Plow 5 and we do hereby declare the following descriptionand accompanying drawing are sufficient to enable any person skilled inthe art or science to which it most nearly appertains to make and useour said invention or improvements without further invention orexperiment.

Our improvements have for their object the construction of such agang-plow that the labor of lifting the plow-frame and plows so as totake the plows out of the ground when desired will be done by the draftof the horses without exertion on the part of the driver. It alsoconsists in arranging the plows so that they can be employed forsubsoilin g or deep tilling.

In order to fully describe our gang-plow reference is had to theaccompanying drawing forming a part of this specification, in which- Arepresents the cross-timber or carrying-axle of the plow. One of thebearing-wheels B is operated by a crank-lever, c, which bears in a box,d, on the bearing-timber A, and which can be revolved so as to raise orlower the wheel B to any desired position in the circle, which itdescribes by a short lever, d. The opposite bearingwheel E can also beraised or lowered bychanging its position in the vertical bar F, whichcan be provided with holes g, as shown, or may be slotted, as preferred.(See Fig. 3.) The timbers H H of the plow-frame extend across above thecross-timber A and carry at their rear ends the plows I I. The pole J isfixed between their forward ends. The seat K is supported directly uponthe cross-timberA by the standard L, which passes down upon each side ofthe plow-frame. Secured to the cross-timber A, upon each side of theplow-frame, is a metal plate, M, which has one end formed into twoparallel prongs, n n.. These prongs are so arranged as to stand at anangle to the plow-frame, one above the other, their inclination beingtoward the front of the plows. Passing' transversely through the timbersH of the frame is a shaft, o, extending to the outside of thefra1ne-timbers, upon each side. Upon these extremities are placedfriction-rollers p, which travel upon the inclined plan es between theparallel inclined prongs n, which serve as a guide 5 thus everythingbeing free, when the draft comes upon the pole the frame with the plowsare elevated as far as the rollers can move upon the inclined prongs.Secured to the under side of the cross-timber A is a bar, q, whichextends forward under thel pole. The front yend of this bar is slotted,as shown, and a pin or bolt in the grooved metallic plate r, which issecured to the under side of the pole,`passes through the slot.

A lever, s, is secured to the bar q in such a position that it willstand directly in front of the seat K in such a position as to engagewith the circular rack t. This rack is fixed to a standard, u, whichconnects the bar q with the front part of the riders seat. A link, o,connects the lever s with the transverse shaft 0, so that by throwingthe lever forward the frame is caused to be elevated, the rollerstraveling upon the inclined guiding-prongs n, and the bolt in thegrooved plate r traversing the slot in the bar q to the forward end. Itis not intended, however, that the lever s will be used for elevatingthe plows and frame, but when the plows are in the ground -and the leveris fixed in the rack t it will hold the frame firmly an d keep the plowsin the ground 5 but by relieving the lever from the rack the draft,comin g directly upon the pole, will lift the frame until the plowsleave the ground, when, by securing the lever in the rack, the framewill be held in its position. The plow Il is provided with a longerstandard than the plow I, and is employed in plowing the bottom of thefurrow which the plow I traveled in the previous round, thus plowing onefurrow of the usual depth with the plow I and 'turning the bottom of thealready turned furrow to the surface with the plow I', in this mannergiving the benefit of a subsoil plow.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, 1s-

The combination, in a wheel gang-plow, of the frame H H, cross-timber A,pole J, wheels B E, plate M, with their guiding-prongs n n, shaft o, barq, plate r, lever s, and link o, arranged and operating as described.

In. witness that the above-described invention is claimed by us we havehereunto set our hands and seals.

JAMES M. HUIE. [L. s. ELISHA GARD. [L. s.

Witnesses:

WM. A. RUNNELs, GEO. H. STRONG. (114) Mun, .A

